/*******************************************************************************
 * Copyright (c) 2012-2016 Codenvy, S.A.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *   Codenvy, S.A. - initial API and implementation
 *******************************************************************************/
package org.eclipse.che.plugin.docker.client;

import com.sun.jna.Native;

import org.eclipse.che.api.core.util.SystemInfo;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * @author andrew00x
 */
public class CLibraryFactory {
    private static final Logger LOG = LoggerFactory.getLogger(CLibraryFactory.class);

    private static final CLibrary C_LIBRARY;

    static {
        CLibrary tmp = null;
        if (SystemInfo.isLinux()) {
            try {
                tmp = ((CLibrary)Native.loadLibrary("c", CLibrary.class));
            } catch (Exception e) {
                LOG.error("Cannot load native library", e);
            }
        }
        C_LIBRARY = tmp;
    }

    public static CLibrary getCLibrary() {
        checkCLibrary();
        return C_LIBRARY;
    }

    private static void checkCLibrary() {
        if (C_LIBRARY == null) {
            throw new IllegalStateException("Can't load native library. Not linux system?");
        }
    }

    private CLibraryFactory() {
    }
}
